.kefuCss{
	position: fixed;
	z-index: 1001;
	right: 16rpx;
	bottom: 330rpx;
	padding: 0;
	width: 70rpx;
	height: 70rpx;
	border-radius: 70rpx;
	background-color: rgba(0,0,0,0);
	box-shadow: 0rpx 0rpx 20rpx 0rpx rgba(0,0,0,0.05);
	background-color: #fff;
}
.kf_png{
	width: 70rpx;
	height: 70rpx;
	position: absolute;
	top: 0;
	left: 0;
}